I'm an artist and director of Skymachine, a design and media studio and Foundry. I made most of these typefaces while I was still a student, and they've been downloaded quite a bit.
Even typographers need a way to have their work supported, in any way they can. If you enjoy these fonts please consider donating or purchasing the fonts directly from Monotype.
https://www.myfonts.com/collections/sky-machine-foundry